Magneto-electric machine.



no. 690,469. Patehted Ian. 7,1902. F. n. sums & a. soscu. MAGNETD ELECTRIC MACHINE.

(Application filed Sept. 20, 19 1.)

(No Model.)

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FREDERICK RICHARD SIMMS, OF BERMONDSEY, ENGLAND, AND ROBERT BOSCH, OF STUTTGART, GERMANY.

MAGNETO-EILECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent No. 690,469, dated January 7, 1902. Application filed September 20, 1901. Serial No. 75,861. (No model.)

To CLZZ whom it may concern..-

Be it known that we, FREDERICK RICHARD SIMMS, a subject of the King of Great Britain, residing at Southwark Park road, Bermondsey, in the county of London, England, andRoBER'r BOSCH, a subject of the Emperor of Germany, residing at 11 Hoppenlaustrasse, Stuttgart, in the German Empire, have invented new and useful Improvements in Magneto-Electric Machines, of which the following is a specification.

Our invention relates to magneto-electric machines especially intended for use in connection with electric ignition mechanism for internal-combustion engines, and wherein a fixed armature, around which an envelop rotates, is employed; and'the object of our invention is to improve the construction of such machines.

According to our invention the envelop is provided with hollow bearings, and the ar mature is supported in the said hollow bearings, as hereinafter described, and as illustrated in the accompanying drawings, in which- Figure 1 is a longitudinal section of a machine provided with our improvements. Fig. 2 is an elevation of a detail hereinafter described. v r q The frameof the machine comprises a bedplate a, having twolorackets b I), provided with suit-able bearings for the envelop to rotate in.

c c are permanent horseshoe-magnets also fixed to the frame.

at is the armature, which in the drawings is shown without its wire windings, and e is the envelop inclosing the said armature. This envelop e is composed of the cylindrical portion f, the end plates 9 g, and the spindles h h, which are rigidly attached to the said end plates 9 g, respectively, and rotate in the hearings in the brackets 22 b.

The spindle h is hollow or tubular throughout, while the spindle h is only hollow for a portion of its length.

The armature d is provided at one end with a spindlet', which extends through the tubular spindle h, and atthe other end with a shorter spindle i, which extends into the aperture in the spindle h.

To the bed a. is fixed a stud or pillarj, the outer end of which is secured to an arm is, adapted to receive the end of the spindle t', the said spindle v1 and the arm being fitted in such a manner that they can be firmly locked togetherfor instance, by means of a nut Z-so as to hold the said spindle t, and consequently also the armature d, against rotation. The spindle t' is formed with a longitudinal channel for the'passage of the wirelead m to the outside of the apparatus.

The arm 70 may be of the shape shown in Fig. 2that is to say, it may have a slot 70 at its lower part, through which the end of the study passes. By this means the position of the armature can be altered to vary the time of ignition, this being especially useful when starting.

Motion is imparted to the envelop 6 through the medium of the spindle 72, upon the outer end of which one of the wheels of the drivinggear (not shown) is fixed. With the construction hereinbefore described it will be understood that the envelop can be rotated while the armature remains stationary, and at the same time the armature-is so inclosed as to preclude the possibility of the entrance of dirt or dust.

n 'n are passages which are provided. to allow of the proper lubricating of the parts.

Having now particularly described and ascertained the nature of our said invention and in What manner the same is to be performed, we declare that what we claim is 1. In a magneto-electric machine, the combination with the field-magnets, of a rotary envelop provided with hollow spindles, an armature within said envelop, provided with spindles extending longitudinally of the hollow envelop-spindles, one of the armaturespindles extending entirely outside of its corresponding envelop-spindle, devices connected to said armature-spindle for holding it and the armature stationary, and means for rotating said envelop, substantially as de scribed.

22. In a magneto-electric machine, the combination with the field-magnets, of a rotary envelop provided with hollow spindles, an armature within said envelop, provided with spindles extending longitudinally of the hollow envelop-spindles, one of the armaturespindles extending entirely outside of its corresponding envelop-spindle, adjustable devices connected to said armature-spindle for 5 holding it and the armature stationary, and

for adjusting the armature, and means for rotating the envelop, substantially as described.

33. In a magneto-electric machine, the co1n- 1o bination with the field-magnets, of a rotary envelop provided with hollow spindles, an armature within said envelop, provided with spindles journaled in the said hollow spindles of the envelop, an arm secured to one of the 15 ar1nature-spindles and provided with a slot concentric with said spindle, a stationary bolt engaging said slot for holding said armature against rotation but permitting an adjustment of the armature around its axis, and means for driving said envelop, substantially 20 as described.

FREDERICK RICHARD SIMMS. ROBERT BOSCH. Witnesses to the signature of Frederick Richard Simins:

HENRY HASPER, WOLDEMAR I-IAUPT. Witnesses to the signature of Robert Bosch:

CARL ALBERT HIRTH, JULIUS HEIM. 

